2019 Land Rover Discovery Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2019 Land Rover Discovery and How to Fix Them

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Reviewed by
Bo Fader
Written by RepairPal Car Genius
Updated January 14, 2025
0%
30% chance it's the
Sensor
0%
25% chance it's the
Control Module
0%
25% chance it's the
Throttle
0%
20% chance it's
Something else
The most common reasons a 2019 Land Rover Discovery cruise control isn't working are failed control module, sensor or switch issues, or throttle actuation problems.
  • Sensor: A faulty or malfunctioning sensor can lead to incorrect readings, causing issues with engine performance or other systems relying on accurate data.
  • Control Module: A faulty control module can lead to erratic vehicle behavior or failure of various electronic systems due to improper signal processing.
  • Throttle: A faulty throttle body or a defective accelerator pedal position sensor may be causing inconsistent throttle response.
Proper diagnosis will determine the exact cause of your symptom, saving you money on unnecessary repairs. The diagnostic experts at RepairPal Certified shops have the right tools and experience to solve any symptom.

How much does it cost to fix a 2019 Land Rover Discovery cruise control isn't working?

Common Repairs

The total repair cost will vary based on the condition of your vehicle and the number of repairs needed to fix your symptom. Proper diagnosis will save you money by finding the exact repairs needed to fix your car right the first time.

In the event that a wheel speed sensor fails, the ABS, traction control system (TCS) and manufacturer specific stability control system lights will illuminate, informing the driver that the systems are disabled. The vehicle will be more prone to tire slip, and normal driving patterns may need to be adjusted to correct for the loss of computer control. On older vehicle's, the speedometer can be affected, causing illumination of the check engine light as well.

What are the steps to diagnose the non-functioning cruise control in a 2019 Land Rover Discovery?

To effectively diagnose the non-functioning cruise control in your 2019 Land Rover Discovery, start with the simplest solutions before progressing to more complex checks. Begin by inspecting the cruise control fuse, as a blown fuse can often be the culprit behind electrical issues. Next, examine the cruise control switch on the steering wheel to ensure it is operational and not stuck. The brake pedal switch is another critical component; it must function correctly to disengage the cruise control when the brake is applied. Following this, test the vehicle speed sensor, which is essential for relaying speed information to the cruise control module. If these initial checks do not resolve the issue, utilize a diagnostic scanner to identify any error codes that may indicate specific problems within the system. Lastly, inspect the wiring and connections for any signs of damage or corrosion that could disrupt the cruise control's functionality. If the problem persists after these steps, seeking assistance from a professional mechanic with expertise in Land Rover vehicles may be necessary for a thorough diagnosis and repair. By following this structured approach, you can efficiently troubleshoot and potentially fix the cruise control issue in your vehicle.

What are the common problems that could cause the cruise control to stop working in a 2019 Land Rover Discovery?

When the cruise control in a 2019 Land Rover Discovery ceases to function, it can be frustrating, but understanding the common problems can help you troubleshoot effectively. One of the primary culprits is faulty speed sensors, which are essential for the system to maintain the desired speed; if these sensors malfunction, the cruise control may not engage properly. Another frequent issue is a defective brake light switch, as this component is designed to disengage the cruise control when the brakes are applied. Additionally, throttle control problems, such as a malfunctioning throttle position sensor, can hinder the cruise control's ability to regulate speed. Electrical issues, including faulty wiring or connections, can also disrupt the system's operation. Lastly, vacuum leaks in the engine can impact the cruise control's functionality, as it relies on vacuum pressure to operate effectively. By identifying these potential issues, you can take the first steps toward diagnosing and possibly repairing the cruise control system in your vehicle.

How urgent is it to address the malfunctioning cruise control in a 2019 Land Rover Discovery?

Addressing a malfunctioning cruise control in a 2019 Land Rover Discovery is of utmost urgency due to the significant safety risks it poses. A malfunction can lead to unexpected acceleration or deceleration, which can result in dangerous driving situations and increase the likelihood of accidents. Moreover, issues with the cruise control system may be indicative of deeper electronic or sensor problems within the vehicle, potentially affecting its overall performance and reliability. Neglecting these symptoms not only compromises safety but can also lead to decreased fuel efficiency and increased wear on the vehicle, resulting in more costly repairs down the line. By promptly addressing cruise control malfunctions, you can ensure that your vehicle operates smoothly and safely, ultimately protecting both yourself and others on the road.

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